Sure, and I'm not complaining too much as a guy who studied Math/CS in my undergrad days (and I'm even considering graduate work!). The author also gives a nod to the industrial paths.
On the other hand:
* I think if you consider "tech, finance, data scientist", some reflection reveals a discouraging fact: we're usually not talking about science or even engineering at all, but essentially support functions allowing new kinds of productivity or scale for mundane business functions. So there's careers out there for us educated in these quantitative/technological arts... but it's generally not a career in science.
* More concretely, my math/CS education is almost entirely superfluous to my six-figure job doing CSS and wrangling squirrelly JavaScript frameworks/apps (mostly as a support function to sell automobiles). Meanwhile there are tenured faculty making half what I do (and postdocs/grad students on poverty incomes) actually working to figure out how life works, cure cancer, and build space elevators.
I don't know much about research related to tenure achievement and salaries, but I found these:
http://chronicle.com/article/Average-Faculty-Salaries-by/126...
http://www.opia.psu.edu/sites/default/files/AIR_Tenure_Flow_...
My takeaway from skimming is that (a) faculty salaries vary, those in areas with the industrial options we've talked about seem to be higher, but an average of $65-70k seems credible (b) data on tenure is hard to come by but everyone agrees it's very difficult to get at high status institutions.